William e



(No Model.)

- E. 'HIGHPIELD. COMBINED PUNOH ING AND GOUNTERSINKING MACHINE.

.835. Patente'd Dec 1 1; 1883..

WITNESS fi WILLIAM E. HIGHFIELD,- OF PHILADELPHIA, PENNSYLVANIA,ASSIGNOR OF ONE-HALF TO J USTICE H. MOVAUGH, OF SAME PLACE.

COMBINED PUNCHING AND COUNTERSINKING MACHINE.

SPECIFICATION forming part of Letters Patent NO. 289,835, dated December11, 1883,

Application filed March 5, 1883. (No model.)

To all whomit may concern:

Be itknown that I, XVILLIAM E. HIGHFIELD, a citizen of the UnitedStates, and a resident of Philadelphia, Pennsylvania, have invented aCombined Punching and Oountersiiiking Machine, of which the following isa specification.

The object of my invention is to so combine a countersinking-tool with apunch that the operation of countersinking one opening in a plate or barcan be performed simultaneously with the punching of another openingtherein; and this object I attain in the manner whichI will now proceedto describe, reference being had to the accompanying drawings, in which-Figures 1 and 2 are diagrams illustrating the object of my invention;Fig. 3, a longitudinal. section of the combined punch and countersinking-machine; Fig. 4, a plan view of the same, and Fig. 5 an end viewwithout the driving mechanism.

A preliminary understanding of my invention may be had by reference toFigs. 1 and 2, in which w represents the punch, or thecountersinking-tool, and Xthe plate or bar in which the countersunkopenings are to be formed. The tool 00 is located at one side of thepunch and at a distance therefrom equal to the distance between theholes in the plate, so that as the punch operates to form one hole thetool so may be operating to countersink the hole adjacent thereto, asshown in Fig. 2.

The organized machine for effecting the operations described is shown inFigs. 3, 4, and 5. A is the frame of the machine, in-which are formedbearings for the driving-shaft B, the latter having a crank-pin, a,which acts upon the long arm of the punch-lever D, the short arm of thesame being adapted to a slot in the guided slide carrying the punch 10,as usual. A block, F, is adapted to guides at the front end of themachine, so as to be adjustable laterally from and toward the punch w,and in this block are formed bearings for the vertical spindle G, whichcarries the countersinking-toolw, the lower end of said spindle havingabevel-wheel, b, which gears into a pinion, d, on a shaft, H. The rearend of the shaft H is adapted to a fixed bearing on the frame; but thefront end of the shaft is carried by a bearing, 6, on an arm, f, of theblock F, so that as the block is adjusted the front end of the shaft Hwill be moved with it. To permit such movement I make the shaftH insections and connect these sections by flexible joints 9; but othermeans may be adopted in carrying out this portion of my invention. Forinstance, the pinion d may be carried bya transverse shaft,to whichthepinion is keyed so that it can be moved thereon with the block, butcannot turn inde- 6o pendently of the shaft. The shaft H is driven fromthe shaft B through the medium of the bevel-gearing shown in Figs. 8 and4., awheel,

h, on the shaft B, gearing into a pinion, 'i, which turns on a stud, 7c,and is secured to a wheel, 4%, the latter gearing into a'pinion, n.

on the shaft H. Any desired arrangement of gearing may, however, besubstituted for this. The disk a, which carries the crank-pin a, hasanother crank-pin, cf, the latter acting upon the short arm of a lever,M, the long arm ofwhich has a set-screw, 8, bearing upon thelower end ofthe spindle G, so that as the lever M is vibrated the said spindle willbe elevated and permitted to fall. The lever M is pivoted to atransverse 7 5 bar, N, and the latter is pivoted to the frame of themachine at each end, so that the lever M is free to vibrate verticallyunder the action of the crank-pin, and also laterally to permit theadjustment of the block F. This adjustment is effected in the presentinstance by a screw-bolt, t, swiveled to the block and adapted to athreaded opening in the frame; but any desired arrangement of adjustingand retaining screws may be used.

The operation of the machine is as follows: The block F is firstadjusted to such a distance from the punch w that when the punch isforming an opening in the plate the countersinking tool so will be inline with an opening already formed therein. The adjustment of the blockis required as the distance between the openings may vary in differentplates. As the punch descends,the spindle G is elevated, and is held inits elevated position while the 5 toolw makes a sufficient number ofrevolutions to properly countersink the opening to which it has beenapplied, the spindle and tool being then allowed to descend, and thepunch caused to rise prior to a readjustment of the plate and repetitionof the operation. Suitable clutches, p p, are provided, whereby thegearing for rotating the spindle G and the crank-pins for operating thepunch-lever D and lifting-lever M can be readily thrown into or out ofaction, and a foot-lever, y, (shown by dotted lines in Fig. 1,) isprovided, in order to permit the elevation of the spindle Gindependently of the crank-pin a.

The countersinkingtool may be arranged so as to act on the top of theplate instead of beneath the same; but the latter arrangement ispreferred, as it permits a more convenient disposal 'of the gearing.

I claim as my invention 1. The combination of a punch, acountersinking-tool alongside of the same, and mechanism for operatingthe said tools, whereby one opening can be countersunk while another isbeing punched, as set forth.

2. The combination of a punch, a countersinking-tool alongside of thesame, and mechanism, substantially as described, for-operating the punchand for rotating and intermittently elevating the countersinking-tool,as set forth.

3. The combination of a punch, a countersinkihgtool,laterally-adjustable bearings for the spindle of said tool, andmechanism, substantially as described,whereby the punch and "WILLIAM E.HIG-HFIELD.

"Witnesses:

HARRY L. AsH NFELT R, HA RY SMITH.

